The Fluorocarbon C₂Cl₃F₃ Has a Normal Boiling Point of 47

question 42

Multiple Choice

The fluorocarbon C₂Cl₃F₃ has a normal boiling point of 47.6°C.The specific heats of C₂Cl₃F₃(l) and C₂Cl₃F₃(g) are 0.91 J/g∙K and 0.67 J/g∙K,respectively.The heat of vaporization of the compound is 27.49 kJ/mol.The heat required to convert 50.0 g of the compound from the liquid at 50.0°C to the gas at 80.0°C is ________ kJ.

• A)8.19
• B)1454
• C)30.51
• D)3031
• E)10.36

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